Ski binding



July 28, 1925. 1,547,618

' C. sl-:EBERG SKI BINDING Filed Jan. 26, 1925 tightly to the ski,

Patented July 28, 1925.

UNITED STATES OHRISTEN sEEBERG, or OSLO, NORWAY.

sKi BINDING.

Application filed January 26, 1925. Serial No. 4,926.`

To all whom it may Gamarra'y Be 1t known that I, GHRISTEN SEEBERG,director, a subject of the King of Norway,

residing at Skippergaten 36, Oslo, Norway,

have invented certain new and useful Improvements in Ski Bindings; and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the Same, reference being hadto the accompanying drawings,'and to letters or figures of referencemarked thereon, which form a part of this specification. E

My invention relates to a ski binding of the type in which the toepartof the foot is fastened to the skiby aid'of a clamping membergripping the edge of the boot sole. The known types of the-se bindingsare in themselves practical bindings, but they necessitate use of skiboots of exceptional solidity, in order to avoid that the soles or bootsare impaired or wholly7 destroyed, the clamping members clamping theSole so that the sole is subjected to a violent bending strain aboutaline between the Vback parts of the clamping members.

The obj ect of my invention is to provide a clamping device for clampingthe sole to the ski by means of which the labove named inconvenience isavoided, said clamping device comprising two clamping members, one oneach side of the ski and movable longitudinally relatively to theski.Preferably the arrangement is such that the clamping members areimparted a combined swinging and sliding movement relatively to the ski.This clamping device may be combined with a back binding of any suitableconstruction.

Two executional forms ofl the invention are illustrated in theaccompanying drawings.

Fig. 1 is a side view partly in section through a ski provided with aclamping device according to the invention.

Fig. 2 is a cross Section on line II-II in Fig. 1. y

Figs. 3 ande are, respectively, a side view and a cross section of amodified form of the clamping device.

In all executional forms the ski binding is used in connection withstationary toe strap ears or lugs A, between which lugs the toe part ofthe boot is inserted. These lugs A may be fastened in any suitablemanner,

In the drawings the lugs are shown fastened by aid of screws V(Fig. 2)Screwed into the u pper side of the? ski, which is shown in longitudinalsection in Fig. l. On the upright part of the lugs A is arranged aclamping member C fastened to a bolt B sliding in an inclined slot H inthe lug A. In the form shown in Figs. 1 and 2 the clamping member Chasthe form of an arm to the rear part of which is linked a back binding Fof leather or the like having preferably a tightening device Gr of knownconstruction. The back binding and the tightening device form however nopart of this invention. The clamping members C are provided with ribs Dextending inwardly from the lugs A and serving to grip above the upperface of the edge of the boot sole. The ribs D may be arranged at theupper edge of the clamping member B or at the lower edge, or it may bearranged one such' rib at the upper, and one at the lower edgey of the'clamping piece. In the latter case these two ribs grip Athe edge of thesole between them.

The function of the binding is as follows:

The bootis first inserted between the rigid lugs A in such manner thatthe edges of the boot sole come beneath the gripping ribs` D of theclamping pieces C, saidl clamping pieces being thereby carried a little'forwards; Thereupon the back binding is laid abont'the heel part of theboot and is tightened by aid of the tightening device G there'- byrdrawing the' clamping piece backwards, which. Owingto the bolt Bfollowing the slot H is simult-aneously lowered so as to clamp the solefirmly against the ski.

Owing to the fact that the clamping arm C is directly connected to theback binding the back part of the said clamping arm will be *raisedtogether with the back part of the boot during the operation, whereby asmall swinging movement is imparted to the gripping ribs D in suchmanner, that the sole is clamped'more firmly to the ski with the forwardends but lift their backward ends a little, whereby the sole is allowedto bend more freely than heretofore. If the foot is bent still moreforwards in such manner that the front ends of the clamping arms C` abutagainst the ski, the further movement of the back binding will be eeotedabout the connection bolts between said back binding and said clampingpieces. Instead of having the clamping pieces made in the form of armsdirectly connected to the back binding, this connection may be effectedLby aid of an intervening connect-ing link. Such -amodiication is shownin Figs. 3 and 4L, where the connecting links K are arranged on theout-` side of the stationary lugs A. The clamping piece C is in thisinstance provided with its clamping rib on its -lower end and isconnected with the connecting link K by aid -o'f the bolt .'B sliding asin the former eX- lample in an inclined slot inthe 'lug A. The4connecting link K is at its lother, backward end `connected to an armN, to which the back binding is fastened 7by aid of a bolt L. vThis boltL is guided in 'a slot M" in the lug A.

Theclafmping pieces may also be arranged in such manner relatively tothe gnide slots that they can only be imparted a sliding movement :and`not simultaneously a swinging movement. This may for instance beobtained byp'rovidifng the Aclamping piece With tivo bolts, bothv guidedin the slotI-I.

As shown in Fig. 3 the clamping ribs oi the clamping lpieces may have acurved form.

Claims. '1. In ski bindingsWith-rigid toe lugs the combinati-0110iclamping members for gripping 4the edges `of the boot soles and pressing.them against the ski, and a back bindiing connected to said clampingmembers, with `guides for -said clamping members 'in said lugs arrangedso as to press the` clamping parts of said clamping members against -thesole on the back bincling heilig' `tightened.

` 2. In ski bindings with rigid 'toe lugs 'the combination of clampingmembers for gripping the edges of the4 boot 'soles and pressing themagainst the `ski,and a back binding connected to said clamping inembers,with inclined guide. slots for said clamping members in said `lngsarranged :so as to press the clampingparfts of said -clined guides insaid lugs clamping members against the `sole Aon the back binding beingtightened.

3. In ski bindings With rigid toe lugs the combination of longitudinallymoveable clamping members the ski and a back binding connected to said`clamping members, with backWardly inclined guides in said lugs for saidlongitudinally movable clamping members, said guides being arranged soas `to press the clamping against the sole on uthe back binding beingtightened.

4. In ski bindings with rigid toe lugs `the combination oflongitudinally moveable and turnable clamping members for gripping theedgescf the boot soles and pressing them against the ski and a bac-kbinding connected to said clamping members, with backwardly inclinedguides insaid lugs for said longitudinally moveable and tnrnableclamping members, `said yguides ybeing arranged so as to `press theclamping parts of said clamping members against Vthe sole lon the backbinding being tightened.

5. In ski bindings with rigid toe lugs the combination of longitudinallymoveable clamping members for gripping the edges of the boot soles andpressing them against the ski and a back binling connected to saidclamping members, with backWa-rdly infor said longitudinally moveableclamping members, fsaicl guides being arranged so as to press the curvedclamping parts of said clamping members against the sole on the backbinding being tightened. i i

In testimony that. I ela-imthe foregoing my invention,` I have rsignedmy name in presence of two-.subscribing Witnesses. `CHRISTEN SEEBERG.

WVitnesses: i

MoGENs Bnecn, GULBORG GULBRANSEN'.

for gripping' the edges of uthe boot soles and pressing them againstparts of said clamping members-

